{"note":"bim_versions 導入後の保存のみ記録 (それ以前は bim_canonical 上書きで履歴なし)","ok":true,"slug":"u-house-tyl16m5c","versions":[{"created_at":"2026-06-04T16:59:43Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.5->99.6)","saved_by":"editor","sha256":"84ae3168a769ae2c698b6e55110fe59b24a2c9c55eab73f9a6a66c5b368d956b","version":11},{"created_at":"2026-06-04T05:53:31Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.5→94.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"76a30ceb54f699d9125e7c735982ac294fa7e1826b458e936165873de16e7076","version":10},{"created_at":"2026-06-04T04:55:43Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 59.7→94.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"c24344aac49fff430ea66596bc4ca4ebc48b6c18e3d1ff8294a131df3d7782c8","version":9},{"created_at":"2026-06-04T04:55:43Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"c79dc3ca117d1c4a5e8f4a26b1b8b39b8eb97bbe1d9b8b33f425630fa318a534","version":8}]}